Nursing bottle



Jan. 9, 1928..

M. A. DAVENPORT.

NURSING BOTTLE.

FILED MAY 31, 1922.

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MERvYN A. DAVENPORT, or nos GATOS, cALrFonNIA, Assrenon or ONE-HALF TO GEORGE r. SHANER, OFLos GATOS, CALIFORNIA. f

NURSING BOTTLE.

Application filed May'31, 1922. Serial No. 564,695.

To all whom t may concern:

Be it known that I, MERVYN A. DAvnN- PORT, a citizen of United States, residing at Los Gratos.v county of Santa Clara, and

State of California, have invented new and.

useful Improvements in Nursing Bottles, of which the following is a specification.-

This invention rela-tes to nursing bottles for infants, and has for its object to provvide an improved nursing bottle equipped with means for admittingair to the interior of the bottle as the contents thereof are withdrawn through the nipple. This feature is very advantageous, as it prevents a vacuum from being created in the bottle, and consequently the food will at all times flow readily with a minimumof exertion on the part of the infant.

@ne form which the invention may assume is exemplified in the following de scription and illustrated by way of example in the accompanying drawings, in which:

Fig. 1 is a view in elevation and section disclosing the preferred embodiment of the invention.

Fig. 2 is a fragmentary View in elevation disclosing certain details of constuc` tion.

Referring more particularly to the drawing, 10 indicates a nursing bottle of suitable design, and which is formed at its top for the reception of a nursing nipple 12. Formed in the side of the bottle adjacent the top thereof is an aperture 14e of sufricient dimensions to receive a valve structure generally indicated at 15. 4This valve structure is designed to permit air to enter the bottle to replace the food drawn therefronfl` by an infant nursing,and it consists of a valve cage 16 and a tube 17. The tube in this instance is formed as an integral part of the valvel cage. As shown in Fig. l, the valve cage is formed in two sections which are threadedly connected as at 18, and which are formed with shoulders 18:L between which the wall of the bottle is clamped. Both of these sections are recessed so that when they are united a valve chamber 19 is formed. This chamber" communica-tes with the atmosphere through perforations 2O formed in the nutportion of the valve 1 body 16 and with the interior of'the botder'lcertain lconditions to rest on a seat 23 and prevent passage of liquid food from the bottle through the perforations Q0.

In use, the device is assembled as illus trated in the drawings. The bottle may then be partially filled with a liquid, and a nipple the bottle. T he infant may then draw the positioned in place inclosing the open end of liquid through orifices in the nipple, in the I usual manner.

Tt is obvious that as the food is drawn from the bottle, air will enter through the perforations 20. This will prevent a vacuum from being created in the bottle and will consequently allow the liquid to flow freely. ,Howeven if the bottle is upset, its contents will not emerge from the perforations 2O asthe ball check will seat on the seat 23 and entirely obstruct passage of the food from the bott-le to the perforations.

From the foregoing it is obvious that the device here disclosed, while simple in construction and operation, presents a desirabie nursing bottle which is inexpensive to manufacture.

Although in the foregoing description and in the drawings, theinvention has been specifically described and illustrated, T wish it understood that various changes in the construction, combination, and arrangement of parts may be made by those skilled in the t art, without departing from the spirit of the invention.

Having thus described my invention, what T claim and vdesire to secure by Letters Patent is: f

1v. A ynursing bottle comprising a conf and extending within the container to a point adjacent the bottom, the lowermost end of said tube being open, a passageway formed in said valve body and communicating with the atmosphere and the interior of the container through the tube, a' ball check in said passageway, and a valve seat formed adjacent the outer end` of said passageway.

2. A nursing bottle comprisinga container having an open end for the reception of a nursing nipple, said container having a circular opening formed in one side thereof adjacent the said open end, a twoLpart valve body having an interior valve chamber adapted to be positioned in said opening, annular shoulders on said parts' of said valve body, and a threaded. connection between said parts by which the valvey body may be Secured to the container and in Said opening, a downwardly extending` tube formed as an extension'of the inner part of the said valve body, the lower. end of said tube being open, a perforated partition between the/interior of said tube and the valve chamber, a perforated partition between said chamber and the atmosphere, a valve seat formedbetween the last named partition and the valve chamber, and a check valve in said chamber.

3. A nursing bottle comprising acontainer having an open end for the reception ofa nipple, said container having an opening,-

formed in one wall thereof, a' two-part valve body adapted to be mounted in said opening, Said parts of said valve body being threadedly connected andeach having a Shoulder wherebythavalve bodywill be clamped to said wall and in said opening, each of said parts being recessed to form-a valve chamber in the valve body, a ball check in said chamber, and` perforated partitions separating said chamber from the atmosphere and `shoulder whereby the valve body will be clamped to the bottle and in said opening, said'parts of said valve body being recessed to forni avalve chamber when they are united, a ball check in Said chamber, a tube formed as an extension of the innermost part of the valve body and extending downwardly to adjacent the bottom of the bottle, a perforated partition separating the interior of the tube from the valve chamber,

the outer wall of the outermost part of the valve body being perforated to provide communication between the valve `chamber and the atmosphere, and a seat for said ball ycheck formed adjacentv said perforated wall whereby the ball check may stop communication between said chamber and the atmosphere. l

y MERVYN A. DAVENPONRT. 

